Year	US Dollars, Sum Over Component Sub-periods
1998-01-01	-58716770184.14490
1999-01-01	37716355758.38830
2000-01-01	79742262499.04000
2001-01-01	-20389118996.97750
2002-01-01	-2456019100.27645
2003-01-01	-1964620265.67752
2004-01-01	-77112949483.86360
2005-01-01	-28784837657.29380
2006-01-01	4025354587.67416
2007-01-01	10591496594.75920
2008-01-01	189014218355.93400
2009-01-01	32544774650.65930
2010-01-01	17641410518.18330
2011-01-01	-47107300115.87480
2012-01-01	-173204515755.87500